<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			html{
				width: 100%;
				height: 100%;
			}
			body{
				margin: 0;
				padding: 0;
				width: 100%;
				height: 100%;
			}
			.di1{
				margin: 0;
				padding: 0;
				width: 100%;
				height: 100%;
				background-image: url(img/background.jpg);
				background-size: 100% 100%;
				background-repeat: no-repeat;
			}
			.di2{
				
			}
		</style>
	</head>
	<body>
		<div class="di1">
			<div class="di2"></div>
			<div class="di2"></div>
			<div class="di2"></div>
		</div>
	</body>
</html>
